for the

AFP specializes in the design and manufacture of complex chromatography measurement valves for the instrumentation, laboratory, scientific and industrial markets. Our solutions incorporate innovative patented technologies that ensure consistent and extremely precise measurement and they are the choice of the world leading companies in the field. Manufactured with the best technologies available and calibrated and controlled by an expert team dedicated to perfection, our analytical products represent a reliable and affordable option for any company subject to the increasingly stringent requirements of the modern world.


Our Gas Chromatographic diaphragm valve with the only embedded patented purge system is our most popular products. Fully loaded with innovative feature this is the number one choice of the leading Gas Chromatograph makers.

  • Unique patented purge feature
  • Valves to fit your application
  • The only diaphragm valve for vaccum application
  • Real time health monitoring
  • Available with NO PURGE option except MDVG-SERIES.

Mini Rotary Valve are commonly used in many system to switch flow path or for sample injection. Drop in replacement for what’s available on the market but with several advantages that makes it leak tigh and long lasting.

  • Treated Rotor. No-sticking action
  • Low rotational force
  • Mounting collar design for anti-rotation assembly

Extended pin design drive adaptor (double stop pin for no radial

The first real analytical tight shut-off diaphragm valve family. They can be used in multiple places in gas chromatographic systems, auto-samplers, sampling and general instrumentation. No dead volume effects, continuous flowpath and purge system make them ideal in many situations. From simple 3-way to complex configuration with timing sequence, the job is easily done.

Fittings are critical components in any analytical system. This is why AFP put some extra work on small detail in order to launch our high performance analytical grade fittings. The level of sealing and the need for zero dead volume were taken into consideration when designing these fittings. Which are available in different sizes and material.

Go on our website to learn more about our LipSeal fittings.


All valves and fittings are manufactured in North America under strict conditions. Most of them are done inside our sister company APN where they are assembled and tested under the control of our ERP system, the Meta4.0, which gives us the possibility to custom tune every valve to the perfectly fit of the customer application.

Contact us

A complete new website coming shortly.

In the meantime, contact us or visit for more information.